I want lose some weight by using sauna slim belt is it usefull or it has some side effects?

Diet & exercise: Diet and exercise are the safest and most effective ways to lose weight (we have all heard it before, because it's true!). Supplements should not be considered as a major part of your weight loss plan. Devices advertised on the internet and television are costly usually not helpful. Working with a personal trainer should help you achieve results faster and safer.

I agree w Dr. Russo: Forget the sauna slim belt. Eat healthfully. Try to eat at least 5 servings of vegetables & 4 of fruit per day. Increase nutritional fiber. Avoid refined sugar & junk carbohydrates. Avoid alcohol, sweetened juices, soda & caffeinated beverages. Aim for 7.5 to 8 hrs of sleep / night. Hydrate w at least 64 oz of water / day. Calories burned must > calories consumed. Do cardio & weight training.